The bar graph shows the number of books Primary 4 children read over a week.
- Class 4 _____ and 4 _____ read 160 books in total. Give your answers in letters. (Eg A, B)
- For every 2 books read by the children, they can exchange for 1 gift. How many more gifts did Class 4B exchange than Class 4D?
(a)
Number of books that children in Class 4C read = 70
Number of books that children in Class 4D read = 90
Number of books that children in Class 4C and 4D read
= 70 + 90
= 160
(b)
Number of books that children in Class 4B read more than children read in Class 4D
= 260 - 90
= 170
Number of gifts that children in Class 4B exchanged more than children in Class 4D
= 170 ÷ 2
= 85
Answer(s): (a) C, D; (b) 85